Offex Futura Leg Extension Silver Overall Dimensions (each extension): 9.25" L x 2.25" W x 0.75" H. Raises Height of the Futura Craft Station Work Surface 6.25" from 31.5" to 37.75" H. For use with Drafting Chair or while Standing. Heavy Gage Steel Construction for Durability. No Tools Required. Net Weight: 2 Lbs. Carton Weight: 3 Lbs. Carton Dimension: 10" L x 4" W x 2.75 " H.